CN111375744A - Method for compounding metal liquid and silicon carbide - Google Patents
Method for compounding metal liquid and silicon carbide Download PDFInfo
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- CN111375744A CN111375744A CN202010389790.2A CN202010389790A CN111375744A CN 111375744 A CN111375744 A CN 111375744A CN 202010389790 A CN202010389790 A CN 202010389790A CN 111375744 A CN111375744 A CN 111375744A
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- silicon carbide
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- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 229910010271 silicon carbide Inorganic materials 0.000 title claims abstract description 75
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 37
- 239000002184 metal Substances 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000007788 liquid Substances 0.000 title claims abstract description 29
- 238000013329 compounding Methods 0.000 title claims abstract description 21
- 239000002245 particle Substances 0.000 claims abstract description 4
- 238000003723 Smelting Methods 0.000 claims description 12
- 239000011230 binding agent Substances 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 10
- 239000011521 glass Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 4
- 235000002245 Penicillium camembertii Nutrition 0.000 claims description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 abstract description 2
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 9
- 239000010703 silicon Substances 0.000 description 9
- 229910052710 silicon Inorganic materials 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 238000009628 steelmaking Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910001141 Ductile iron Inorganic materials 0.000 description 3
- 229910001021 Ferroalloy Inorganic materials 0.000 description 3
- 241001062472 Stokellia anisodon Species 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 238000005275 alloying Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002054 inoculum Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910000676 Si alloy Inorganic materials 0.000 description 1
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000013071 indirect material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/06—Vacuum casting, i.e. making use of vacuum to fill the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D23/00—Casting processes not provided for in groups B22D1/00 - B22D21/00
- B22D23/04—Casting by dipping
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ceramic Products (AREA)
Abstract
The invention discloses a method for compounding metal liquid and silicon carbide, which is characterized in that the metal liquid is sucked into gaps of silicon carbide particles by utilizing vacuum negative pressure to be completely compounded, the preparation method is simple and easy to realize, and the products with high toughness and high temperature resistance can be improved.
Description
Technical Field
The invention relates to the technical field of silicon carbide compounding, in particular to a method for compounding metal liquid and silicon carbide.
Background
Silicon carbide is an artificial synthetic raw material, which is synthesized by taking natural silica (silica sand) with the Si02 content of not less than 97 percent and coke (or anthracite) as basic raw materials, adding a small amount of salt and wood dust and using a resistance furnace at the temperature of 2000-2500-C. The application of the non-ferrous metal smelting industry uses the silicon carbide which has high temperature resistance, high strength, good heat-conducting property and impact resistance as a high-temperature indirect heating material, such as a retort distillation furnace. A rectifying furnace tower tray, an aluminum electrolytic cell, a copper melting furnace lining, an arc-shaped plate for a zinc powder furnace, a thermocouple protection tube and the like. 2. Applications in the steel industry take advantage of the corrosion resistance of silicon carbide. Thermal shock resistance and wear resistance. Good heat conduction, and can be used for large-scale blast furnace lining to prolong the service life. 3. The hardness of the applied silicon carbide in the metallurgical mineral separation industry is second to that of diamond, the silicon carbide has stronger wear resistance, and is an ideal material for wear-resistant pipelines, impellers, pump chambers, cyclones and lining of ore buckets, the wear resistance of the silicon carbide is 5-20 times of the service life of cast iron rubber, and the silicon carbide is also one of ideal materials for aviation runways. 4. The application of building material ceramics and grinding wheel industry utilizes the heat conductivity coefficient. The heat radiation and high heat strength, and the manufactured thin-plate kiln furniture not only can reduce the kiln furniture capacity, but also can improve the kiln capacity and product quality, shorten the production period, and is an ideal indirect material for baking and sintering ceramic glaze surfaces. 5. The application in energy saving utilizes good heat conduction and thermal stability as a heat exchanger, reduces the fuel consumption by 20 percent, saves the fuel by 35 percent and improves the productivity by 20 to 30 percent. Especially, the wear resistance of the inner part of the discharge conveying pipeline used in the ore dressing plant is 6 to 7 times that of the common wear-resistant material. Silicon iron: i.e., alloys of silicon and iron, in various grades with silicon contents of 45%, 65%, 75% and 90%. The application is as follows:
(1) used as deoxidizer and alloying agent in steel-making industry. In order to obtain steel with qualified chemical composition and ensure the quality of the steel, deoxidation is required in the final stage of steel making, the chemical affinity between silicon and oxygen is very large, and therefore, the ferrosilicon is a stronger deoxidizer for steel making and is used for precipitation and diffusion deoxidation. The strength, hardness and elasticity of the steel can be obviously improved by adding a certain amount of silicon into the steel, so that ferrosilicon is also used as an alloying agent when smelting structural steel (containing 0.40-1.75 percent of silicon bud), tool steel (containing SiO.30-1.8 percent), spring steel (containing SiO.40-2.8 percent) and silicon steel (containing 2.81-4.8 percent of silicon) for transformers. In addition, in the steel-making industry, the ferrosilicon powder is often used as a steel ingot cap heating agent to improve the quality and the recovery rate of steel ingots by utilizing the characteristic that the ferrosilicon powder can emit a large amount of heat at high temperature. (2) Used as inoculants and nodulizers in the cast iron industry. Cast iron is an important metal material in modern industry, is cheaper than steel, is easy to melt and smelt, has excellent casting performance and shock resistance much better than steel, and particularly is nodular cast iron, and the mechanical performance of the nodular cast iron reaches or is close to that of steel. Ferrosilicon is added to cast iron in a certain amount to prevent carbide from forming in the iron and promote precipitation and spheroidization of graphite, so that the ferrosilicon is an important inoculant (for helping to precipitate graphite) and nodulizer in the production of nodular cast iron. (3) Is used as a reducing agent in the production of ferroalloys. Not only the chemical affinity between silicon and oxygen is very large, but also the carbon content of the high silicon ferrosilicon is very low. High silicon ferrosilicon (or siliceous alloy) is therefore a reducing agent commonly used in the ferroalloy industry for the production of low carbon ferroalloys. (4) In other aspects. The finely ground or atomized ferrosilicon powder can be used as a suspension phase in the mineral separation industry. Can be used as coating of welding rods in the welding rod manufacturing industry. High silicon ferrosilicon is used in the chemical industry for the manufacture of silicone and other products.
At present, under certain conditions, the connection between the silicon carbide and the metal matrix is carried out by adopting glue, and the silicon carbide and the matrix are easy to fall off after the connection mode is heated.
Disclosure of Invention
The invention mainly solves the technical problem of how to provide a method for compounding metal liquid and silicon carbide, which has the advantages of simple preparation method, easy realization and capability of improving toughness and high-temperature resistant products.
In order to solve the technical problems, the invention adopts a technical scheme that: the method for compounding the metal liquid and the silicon carbide is characterized by comprising the following concrete implementation steps of:
step 1, preparing silicon carbide into a silicon carbide model;
step 2, coupling one end of the model with a vacuum chuck,
step 3, smelting the metal liquid, immersing the silicon carbide model into the metal liquid after smelting,
and 4, starting vacuum negative pressure, keeping for 10 seconds, and leaving the metal liquid to finish the composite model.
Preferably, step 1, the silicon carbide is made into a silicon carbide model by mixing silicon carbide powder with an inorganic binder and placing the mixture into a mold to form the silicon carbide model.
Preferably, the step 1 of preparing the silicon carbide model from the silicon carbide is to prepare the silicon carbide model through a white mold → spraying of an inorganic binder → sand (silicon carbide) suspension → repetition of n times → baking → coating suspension (2-3 times) → baking.
Preferably, in step 3, the molten metal melted in step 4 is sucked into the gap of the silicon carbide mold by vacuum negative pressure.
Preferably, the silicon carbide model prepared by mixing the silicon carbide and the inorganic binder is prepared by the following method: selecting silicon carbide with standard particle size, mixing with a glass water stirrer, putting into a prepared cavity, solidifying with carbon dioxide, and taking out a model made of silicon carbide.
Further, the inorganic binder specifically refers to glass water.
Further, the ratio of the glass water was 7%.
Preferably, the vacuum chuck is connected with a vacuum pump.
Preferably, the compounding ratio of the metal liquid is 30%, and the compounding ratio of the silicon carbide is 70%.
Preferably, the smelting is to smelt molten metal in a melting furnace.
Preferably, the pressure of the vacuum negative pressure in the step 4 is more than 7KPa.
The invention can effectively solve the problem that the connection between the silicon carbide and the metal matrix is realized by adopting glue, and the silicon carbide and the matrix are easy to fall off after the connection mode is heated.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a flow chart of steps in an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, in an embodiment of the present invention, a method for compounding molten metal and silicon carbide includes mixing silicon carbide and molten metal to form a product model, and includes the following steps:
step 1, preparing silicon carbide into a silicon carbide model;
step 2, coupling one end of the model with a vacuum chuck,
step 3, smelting the metal liquid, immersing the silicon carbide model into the metal liquid after smelting,
and 4, starting vacuum negative pressure, keeping for 10 seconds, and leaving the metal liquid to finish the composite model.
In the specific implementation process, the silicon carbide model prepared from the silicon carbide in the step 1 is prepared by mixing silicon carbide powder and an inorganic adhesive and putting the mixture into a mold.
In the specific implementation process, the step 1 of preparing the silicon carbide model from the silicon carbide is to prepare the silicon carbide model through a white mold → inorganic binder spraying → sand (silicon carbide) hanging → repeating for n times → drying → coating hanging (2-3 times) → drying.
In the specific implementation process, the molten metal prepared in the step 3 and the step 4 is sucked into the gap of the silicon carbide model by using vacuum negative pressure.
In the specific implementation process, the silicon carbide model prepared by mixing the silicon carbide and the inorganic binder is realized by the following method: selecting silicon carbide with standard particle size, mixing with a glass water stirrer, putting into a prepared cavity, solidifying with carbon dioxide, and taking out a model made of silicon carbide.
In a specific implementation process, the inorganic binder specifically refers to glass water.
In the specific implementation process, the proportion of the glass water is 7%.
In the specific implementation process, the vacuum chuck is connected with a vacuum pump.
In the specific implementation process, the compounding proportion of the metal liquid is 30%, and the compounding proportion of the silicon carbide is 70%.
In the specific implementation process, the smelting is to smelt the metal liquid by using a melting furnace.
In the specific implementation process, the pressure of the vacuum negative pressure in the step 4 is greater than 7KPa.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The method for compounding the metal liquid and the silicon carbide is characterized by comprising the following specific implementation steps:
step 1, preparing silicon carbide into a silicon carbide model;
step 2, coupling one end of the model with a vacuum chuck,
step 3, smelting the metal liquid, immersing the silicon carbide model into the metal liquid after smelting,
and 4, starting vacuum negative pressure, keeping for 10 seconds, and leaving the metal liquid to finish the composite model.
2. The process of claim 1, wherein the step 1 of preparing the silicon carbide mold from the silicon carbide is to prepare the silicon carbide mold by mixing the silicon carbide powder with the inorganic binder and placing the mixture into a mold.
3. The method of claim 1, wherein the step 1 of preparing the silicon carbide model from the silicon carbide is to prepare the silicon carbide model by white mold → inorganic binder spraying → sand coating of the silicon carbide → repeating n times → drying → coating 2-3 times → drying.
4. The method for compounding the metal liquid and the silicon carbide as claimed in claim 1, wherein the metal liquid melted in step 3 and step 4 is sucked into the gap of the silicon carbide mold by vacuum negative pressure.
5. The method for compounding the metal liquid and the silicon carbide according to claim 1, wherein the step 1 of mixing the silicon carbide and the inorganic binder to form the silicon carbide model is realized by the following steps: selecting silicon carbide with standard particle size, mixing with a glass water stirrer, putting into a prepared cavity, solidifying with carbon dioxide, and taking out a model made of silicon carbide.
6. The method as claimed in claim 1, wherein the inorganic binder is glass water.
7. The method for compounding metal liquid and silicon carbide according to claim 1, wherein in the step 2, a vacuum chuck is connected with a vacuum pump.
8. The method for compounding the metal liquid and the silicon carbide as claimed in claim 1, wherein the compounding ratio of the metal liquid is 30% and the compounding ratio of the silicon carbide is 70%.
9. The method for compounding the metal liquid and the silicon carbide as claimed in claim 1, wherein the smelting method is a method of smelting the metal liquid by using a melting furnace.
10. The method for compounding metal liquid and silicon carbide according to claim 1, wherein the vacuum negative pressure in the step 4 is greater than 7KPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010389790.2A CN111375744A (en) | 2020-05-11 | 2020-05-11 | Method for compounding metal liquid and silicon carbide |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010389790.2A CN111375744A (en) | 2020-05-11 | 2020-05-11 | Method for compounding metal liquid and silicon carbide |
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| CN111375744A true CN111375744A (en) | 2020-07-07 |
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| CN202010389790.2A Pending CN111375744A (en) | 2020-05-11 | 2020-05-11 | Method for compounding metal liquid and silicon carbide |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114226691A (en) * | 2021-12-09 | 2022-03-25 | 松山湖材料实验室 | Metal-based ceramic composite material and preparation method thereof |
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